Meaning Of The Word Corundum
What's the definition of Corundum? Find Corundum meanings, definitions and more at the Real Dictionary online.
Corundum Meaning
| Corundum Definition |
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What's The Definition Of Corundum?
corundum in American English
a very hard mineral, aluminum oxide, Al2O3: a dark, coarse variety (emery) is used for grinding and polishing; clear, transparent varieties (ruby, sapphire) are used as gems noun: a common mineral, aluminum oxide, Al2O3, notable for its hardness: transparent varieties, as sapphire and ruby, are used as gems, other varieties as abrasives: often made synthetically corundum in British English noun: a white, grey, blue, green, red, yellow, or brown mineral, found in metamorphosed shales and limestones, in veins, and in some igneous rocks. It is used as an abrasive and as gemstone; the red variety is ruby, the blue is sapphire. Composition: aluminium |
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